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Texas Instruments ESD762DBZR
- Part No.:
- ESD762DBZR
- Manufacturer:
- Texas Instruments
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ESD762DBZR.pdf
- Description:
- DUAL 1.75-PF 24-V 20-KV ESD PROT
- Quantity:
- Payment:
- Shipping:
Inventory:1,135
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Product details
Overview
ESD762DBZR from Texas Instruments is a dual-channel, bidirectional TVS diode in SOT-23 (DBZ) package, rated for ±18kV IEC 61000-4-2 ESD protection, 2.5A IEC 61000-4-5 (8/20µs) surge current, 24V reverse stand-off voltage (VRWM), and 1.7pF typical I/O capacitance - deployed for USB-PD CC/SBU/D+/D− line protection and industrial 4–20mA/PLC I/O surge suppression.
For engineers reviewing the ESD762DBZR datasheet, ESD762DBZR pinout, ESD762DBZR application, or ESD762DBZR equivalent, this page delivers verified electrical parameters, validated SOT-23 pin mapping, real-world USB-PD and industrial I/O use cases, and two confirmed alternative parts with documented technical and application differences.
Technical Context
The ESD762DBZR implements a back-to-back TVS diode clamp architecture across two independent I/O channels, enabling symmetrical ±24V bidirectional standoff and clamping down to 36V at 2.5A (8/20µs). Its low dynamic resistance (0.57Ω) and ultra-low leakage (≤50nA at ±24V) ensure minimal signal distortion and power loss during normal operation.
Designed for placement directly at USB connectors or industrial I/O terminals, it operates across −55°C to +150°C and supports automatic optical inspection (AOI) via its leaded SOT-23 package. The device activates only during transients exceeding ±25.5V breakdown, reverting to high-impedance state once voltage falls below holdover threshold.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IEC 61000-4-2 ESD | ±18kV contact & air-gap - meets Level 4 immunity without system-level redesign |
| IEC 61000-4-5 Surge | 2.5A (8/20µs) - protects VBUS and industrial I/O against lightning-induced surges |
| Reverse Stand-off Voltage | ±24V - safely withstands short-to-VBUS events on USB-PD control lines |
| Clamping Voltage | 36V at 2.5A - limits transient voltage seen by downstream USB PD controller or ADC |
| I/O Capacitance | 1.7pF (typical) - preserves signal integrity up to 480Mbps on D+/D− lines |
| Dynamic Resistance | 0.57Ω - ensures fast, low-voltage clamping response during ESD strike |
| Leakage Current | ≤50nA at ±24V - negligible standby power draw in battery-powered industrial sensors |
Pinout & Package
SOT-23 (DBZ) 3-pin package: 2.92mm × 2.37mm footprint with gull-wing leads, qualified for −55°C to +150°C operation and compatible with standard reflow profiles (MSL Level-1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IO) | Input/Output Channel A | Bidirectionally protected signal line (e.g., CC1, SBU1, or PLC analog input) |
| 2 (IO) | Input/Output Channel B | Independent second protected line (e.g., CC2, SBU2, or 4–20mA return) |
| 3 (GND) | Ground Reference | Low-inductance path to PCB ground plane; must be routed short and wide per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional Clamping | Enables single-device protection of both polarities on USB CC/SBU or industrial differential pairs |
| Low 1.7pF Capacitance | Maintains signal rise/fall times for USB 2.0 full-speed (480Mbps) and industrial digital I/O |
| 2.5A Surge Rating | Meets IEC 61000-4-5 requirements for VBUS rail and industrial fieldbus node protection |
| ±24V VRWM | Prevents false triggering during USB-PD negotiation voltages and 24V industrial supply transients |
| 0.57Ω Dynamic Resistance | Minimizes clamping voltage overshoot during fast ESD events (<1ns rise time) |
Applications
| USB Power Delivery Protection | Industrial 4–20mA Loop Protection |
|---|---|
|
Use Scenario: Protecting CC1/CC2 and SBU1/SBU2 lines in USB-C receptacles against ESD and VBUS shorts. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed between connector and USB PD controller, activated only during transients >±25.5V. Use Value: Prevents latch-up or damage to PD controller during ±18kV contact discharge while maintaining <1.7pF loading on control lines. |
Use Scenario: Shielding analog input circuitry of PLC modules from ESD and surge coupling on 4–20mA field wiring. IC Role / Device Role / Timing Role: Passive clamp on each current-loop terminal, diverting transients to chassis ground before reaching precision ADC front-end. Use Value: Enables robust operation in factory-floor environments where 2.5A surge events occur due to relay switching or motor drive noise. |
| CANopen Node Protection | Smart Distribution System (SDS) Interface |
|
Use Scenario: Adding secondary ESD hardening to CAN transceiver I/O pins in CiA 301-compliant motion controllers. IC Role / Device Role / Timing Role: Low-capacitance TVS on CANH/CANL lines, placed after common-mode choke but before transceiver. Use Value: Complements built-in transceiver ESD rating with ±18kV air-gap immunity without degrading 1Mbps CAN signal integrity. |
Use Scenario: Protecting SDS bus interface ICs in building automation panels exposed to maintenance-handling ESD. IC Role / Device Role / Timing Role: Dual-channel clamp on SDS data pair (SDS+ and SDS−), referenced to local ground plane. Use Value: Ensures compliance with EN 50325-4 for safety-critical building management systems operating at 24V nominal. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESD752DBZR | Lower surge rating (1.5A vs. 2.5A), same ±18kV ESD, identical SOT-23 package and pinout | Not suitable for VBUS protection; limited to signal-line-only roles in USB-PD or industrial I/O | Select when 2.5A surge capability is unnecessary and cost optimization is prioritized over VBUS-level robustness |
| TPD2E001DRSR | Single-channel, 1.0pF capacitance, ±12kV ESD, no IEC 61000-4-5 surge rating | Only appropriate for low-energy signal lines (e.g., I²C, UART); cannot replace ESD762DBZR in USB-PD or industrial surge scenarios | Choose only for space-constrained, low-capacitance applications where 2.5A surge and ±18kV ESD are not required |
Compared with ESD752DBZR and TPD2E001DRSR, the ESD762DBZR uniquely combines dual-channel operation, ±18kV ESD immunity, 2.5A surge capability, and 24V VRWM - making it the only option among the three qualified for USB-PD VBUS protection and industrial 4–20mA loop hardening.
Availability
ESD762DBZR is available at Aetrix Electronics and suitable for USB power delivery designs, industrial PLC I/O modules, CANopen node interfaces, and smart distribution system (SDS) equipment requiring stable component supply and long-term production continuity.
Supply support for ESD762DBZR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor company specializing in analog, embedded processing, and high-reliability components for industrial, automotive, and communications markets.
The ESD762DBZR belongs to TI's ESD protection diode product line, engineered specifically for robust transient suppression in USB-PD and industrial fieldbus interfaces where ±18kV ESD immunity and 2.5A surge handling are mandatory.
FAQ
What is the maximum continuous operating voltage for ESD762DBZR?
The ESD762DBZR has a reverse stand-off voltage (VRWM) of ±24V, meaning it can continuously block up to 24V in either polarity without conduction. This allows safe integration into USB-PD control lines that may experience short-to-VBUS events, and into 24V industrial I/O circuits where transient overvoltage must be tolerated without device activation.
Does ESD762DBZR support bidirectional signal protection?
Yes, ESD762DBZR uses a back-to-back TVS diode configuration that provides symmetrical clamping for both positive and negative transients. Its ±25.5V DC breakdown voltage and ±36V clamping at 2.5A ensure consistent protection on USB CC/SBU lines or industrial differential signals regardless of polarity - critical for USB-PD negotiation and bidirectional fieldbus protocols like CANopen.
What is the I/O capacitance of ESD762DBZR and why does it matter?
The ESD762DBZR has a typical I/O capacitance of 1.7pF per channel, measured at 1MHz with 30mVpp bias. This low value prevents signal degradation on high-speed lines such as USB 2.0 D+/D− (480Mbps), while still delivering robust ±18kV ESD protection - striking a verified balance between immunity and bandwidth that few dual-channel TVS devices achieve.
Can ESD762DBZR protect USB-PD VBUS lines?
Yes, ESD762DBZR is explicitly rated for 2.5A IEC 61000-4-5 (8/20µs) surge current and ±24V VRWM, making it suitable for VBUS rail protection in USB-PD applications. Its 36V clamping voltage at 2.5A limits transient energy delivered to downstream overvoltage protection ICs, and its dual-channel design allows simultaneous protection of VBUS and adjacent control lines like CC1/CC2.
How does ESD762DBZR differ from ESD752DBZR?
ESD762DBZR offers higher surge current capability (2.5A vs. 1.5A), identical ±18kV IEC 61000-4-2 ESD rating, same SOT-23 package and pinout, and matching 1.7pF capacitance. The key distinction is that only ESD762DBZR meets the 2.5A requirement for VBUS protection per USB-PD specifications and industrial surge standards like IEC 61000-4-5.
ESD762DBZR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 2
- Voltage - Reverse Standoff (Typ):
- 24V (Max)
- Voltage - Breakdown (Min):
- 25.5V
- Voltage - Clamping (Max) @ Ipp:
- 36V (Typ)
- Current - Peak Pulse (10/1000µs):
- 2.5A (8/20µs)
- Power - Peak Pulse:
- 90W
- Power Line Protection:
- No
- Applications:
- CAN, USB
- Capacitance @ Frequency:
- 1.7pF @ 1MHz
- Operating Temperature:
- -50°C ~ 150°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
ESD762DBZR FAQ
1.How can I place an order for ESD762DBZR through Aetrix?
Please submit a Request for Quotation (RFQ) for ESD762DBZR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ESD762DBZR reliable?
The price and inventory of ESD762DBZR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESD762DBZR is usually 5 days.
3.What payment methods are accepted for ESD762DBZR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESD762DBZR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ESD762DBZR?
ESD762DBZR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ESD762DBZR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ESD762DBZR?
For technical support, including ESD762DBZR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESD762DBZR requirements.
6.How does Aetrix verify that ESD762DBZR is sourced from the original manufacturer or authorized distributors?
All ESD762DBZR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ESD762DBZR meets industry standards.
7.What is the process for return or replacement of ESD762DBZR?
All ESD762DBZR units undergo pre-shipment inspection (PSI). If there is an issue with ESD762DBZR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ESD762DBZR part is unused and in its original packaging.
Return procedure for ESD762DBZR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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